void own_setmem(void huge *dest, long length, char value);
long own_read(int handle, void huge *buf, long len);
long own_write(int handle, void huge *buf, long len);
void own_movedata(void huge *srcptr,void huge *destptr,long n);
unsigned long own_farcoreleft(void);
long own_getdfree(int drive);
void far *own_farmalloc(unsigned long nbytes);
void own_farfree(void far *block);
